Question

which is a way that paleontologists have contributed to humans understanding of the history of life? they found evidence that climate has not changed significantly. they grouped organisms by the period in which they existed. they discovered that the first humans lived with dinosaurs. they learned that life has existed since earth was created.

Explanation:

Paleontologists study fossils to understand life - history. Grouping organisms by existence - period is a key contribution. Climate has changed, first humans didn't live with dinosaurs, and life didn't start at Earth's creation.

Answer:

B. They grouped organisms by the period in which they existed.